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Finding the Fourth Proportional to 26,446.86, 39,670.42 and 8,916.84

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Solution

The fourth proportional to 26,446.86, 39,670.42 and 8,916.84 is: 13,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,446.86 : 39,670.42 = 8,916.84 : x
  2. Step 2: Convert to fraction form
    26,446.86/39,670.42 = 8,916.84/x
  3. Step 3: Cross multiply
    26,446.86x = 39,670.42 × 8,916.84
  4. Step 4: Simplify right side
    26,446.86x = 353,734,544.94
  5. Step 5: Solve for x
    x = 353,734,544.94/26,446.86
  6. Step 6: Final answer
    x = 13,375.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.